Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Nematoda Gegenbaur, 1859 - round worms
     Class Chromadorea Inglis, 1983
       Subclass Chromadoria Adamson, 1987 [monotypic]
         Superorder Chromadorica Hodda, 2007
           Order Chromadorida Chitwood, 1933 [monotypic]
             Suborder Chromadorina Filipjev, 1929 [monotypic]
               Superfamily Chromadoroidea Filipjev, 1917
                 1 Family Achromadoridae Gerlach & Riemann, 1973
                 2 Family Chromadoridae Filipjev, 1917
                 3 Family Cyatholaimidae Filipjev, 1918
                 4 Family Ethmolaimidae Filipjev & Schuurmans Stekhoven, 1941
                 5 Family Neotonchidae Lorenzen, 1981